Which expressions can be used to find the total amount that must be repaid on a 1-year loan of d dollars with a 4% interest rate?

D)   The amount that must be paid after a year is (d  + 0.04 d)

Step-by-step explanation:

Here, Principal = d

Time  =1 year

Rate of Interest =  4%

Now, SIMPLE INTEREST =  

                                         =  

or, Simple Interest =   0.04d

Now,   Amount = Principal + Simple Interest

                          =  d  + 0.04d

or, A  = d + 0.04d

Hence, The amount that must be paid after a year is d  + 0.04d

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